New integrable extension of the Hubbard chain with variable range hopping

Details New integrable extension of the Hubbard chain with variable range hopping New integrable extension of the Hubbard chain with variable range hopping

1998-02-06

arxiv.org/abs/cond-mat/9802066v1

J.Phys.A:Math.Gen.31(1998)6367-6384

Physics

Condensed Matter

Statistical Mechanics

25 pages, LaTeX, no figures

Scientific paper

10.1088/0305-4470/31/30/006

New integrable variant of the one-dimensional Hubbard model with variable-range correlated hopping is studied. The Hamiltonian is constructed by applying the quantum inverse scattering method on the infinite interval at zero density to the one-parameter deformation of the L-matrix of the Hubbard model. By construction, this model has Y(su(2))$\oplus$Y(su(2)) symmetry in the infinite chain limit. Multiparticle eigenstates of the model are investigated through this method.

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